Piston Pump

Also known as well service or high viscosity pump, piston pump is a reciprocating pump that uses a plunger or piston to move media through a cylindrical chamber. The plunger or piston is actuated by a steam powered, pneumatic, hydraulic or electric drive. Piston pump is basically a plunger pump.

How does a Piston Pump works?
Piston pumps use a cylindrical mechanism to create a reciprocating motion along an axis, which then builds pressure in a cylinder to force gas or fluid through the pump. Liquid moves through a piston by virtue of the push pull motion of pistons within the handle side of the pump. A basic piston pump consists of two valves and a stuffing box. The pressure in the chamber actuates the valves at both the suction and discharge points. Piston pumps are used in lower pressure applications. It uses cam lobe action against the piston to generate hydraulic fluid flow and lift the implements. The volume of the fluid discharged is equal to the area of the plunger or piston.

Types of Piston Pump:

• Axial Piston Pump :The piston elements moving along an axis are called axial piston pumps.
  
  
• Rotary Piston Pump : Rotary piston pumps typically have an internal rotating mechanism that moves the piston.

Applications of Piston Pump:
Piston Pumps are used in a variety of industries and applications. They are as follows:

• Beverage vending machines
• Post-mix drink dispensers
• Water carbonators
• Espresso coffee machines
• Smoke generators
• Steam generators
• Carpet cleaners
• Water purifiers
• Indexing, conveying, lifting, clamping and machine feed or extract applications
• Low pressure applications and general service or oil service applications
• Power applications

Uses and Features of Piston Pump:

• Generally of compact design.
• Low noise level during operation.
• Excellent horse power to weight ratio.
• Piston pumps can generate an overall efficiency in the range of 90-95%.
• Reciprocating piston pumps can maintain a pressure of 1500 to 6000 psi and move fluid volumes of 35 gallons per minute.
• It is made up of materials like steel, stainless steel, bronze, brass, iron and nickel alloy.